Utilities and services. Each townhouse shall be independently served by separate heating, air-conditioning, sewer, water, electricity, gas or other facility and utility services wherever such utilities and services are provided, and no townhouse shall be in any way dependent upon such services or utility lines located within another unit or on or in another townhouse or townhouse site, except as may be installed in public easements. All townhouses must be connected to public water and sewer lines, and all electrical and telephone lines in a townhouse development site shall be placed underground. Proper and adequate access for fire-fighting purposes and access to service areas to provide garbage and waste collection and for any other necessary services shall be provided.